google_mobile_ads 0.13.3

Flutter plugin for Google Mobile Ads, supporting banner, interstitial (full-screen), rewarded and native ads

example/lib/main.dart

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// ignore_for_file: public_member_api_docs

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';

import 'reusable_inline_example.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  MobileAds.instance.initialize();
  runApp(MyApp());
}

// You can also test with your own ad unit IDs by registering your device as a
// test device. Check the logs for your device's ID value.
const String testDevice = 'YOUR_DEVICE_ID';
const int maxFailedLoadAttempts = 3;

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  static final AdRequest request = AdRequest(
    keywords: <String>['foo', 'bar'],
    contentUrl: 'http://foo.com/bar.html',
    nonPersonalizedAds: true,
  );

  InterstitialAd? _interstitialAd;
  int _numInterstitialLoadAttempts = 0;

  RewardedAd? _rewardedAd;
  int _numRewardedLoadAttempts = 0;

  BannerAd? _anchoredBanner;
  bool _loadingAnchoredBanner = false;

  @override
  void initState() {
    super.initState();
    _createInterstitialAd();
    _createRewardedAd();
  }

  void _createInterstitialAd() {
    InterstitialAd.load(
        adUnitId: InterstitialAd.testAdUnitId,
        request: request,
        adLoadCallback: InterstitialAdLoadCallback(
          onAdLoaded: (InterstitialAd ad) {
            print('$ad loaded');
            _interstitialAd = ad;
            _numInterstitialLoadAttempts = 0;
          },
          onAdFailedToLoad: (LoadAdError error) {
            print('InterstitialAd failed to load: $error.');
            _numInterstitialLoadAttempts += 1;
            _interstitialAd = null;
            if (_numInterstitialLoadAttempts <= maxFailedLoadAttempts) {
              _createInterstitialAd();
            }
          },
        ));
  }

  void _showInterstitialAd() {
    if (_interstitialAd == null) {
      print('Warning: attempt to show interstitial before loaded.');
      return;
    }
    _interstitialAd!.fullScreenContentCallback = FullScreenContentCallback(
      onAdShowedFullScreenContent: (InterstitialAd ad) =>
          print('ad onAdShowedFullScreenContent.'),
      onAdDismissedFullScreenContent: (InterstitialAd ad) {
        print('$ad onAdDismissedFullScreenContent.');
        ad.dispose();
        _createInterstitialAd();
      },
      onAdFailedToShowFullScreenContent: (InterstitialAd ad, AdError error) {
        print('$ad onAdFailedToShowFullScreenContent: $error');
        ad.dispose();
        _createInterstitialAd();
      },
    );
    _interstitialAd!.show();
    _interstitialAd = null;
  }

  void _createRewardedAd() {
    RewardedAd.load(
        adUnitId: RewardedAd.testAdUnitId,
        request: request,
        rewardedAdLoadCallback: RewardedAdLoadCallback(
          onAdLoaded: (RewardedAd ad) {
            print('$ad loaded.');
            _rewardedAd = ad;
            _numRewardedLoadAttempts = 0;
          },
          onAdFailedToLoad: (LoadAdError error) {
            print('RewardedAd failed to load: $error');
            _rewardedAd = null;
            _numRewardedLoadAttempts += 1;
            if (_numRewardedLoadAttempts <= maxFailedLoadAttempts) {
              _createRewardedAd();
            }
          },
        ));
  }

  void _showRewardedAd() {
    if (_rewardedAd == null) {
      print('Warning: attempt to show rewarded before loaded.');
      return;
    }
    _rewardedAd!.fullScreenContentCallback = FullScreenContentCallback(
      onAdShowedFullScreenContent: (RewardedAd ad) =>
          print('ad onAdShowedFullScreenContent.'),
      onAdDismissedFullScreenContent: (RewardedAd ad) {
        print('$ad onAdDismissedFullScreenContent.');
        ad.dispose();
        _createRewardedAd();
      },
      onAdFailedToShowFullScreenContent: (RewardedAd ad, AdError error) {
        print('$ad onAdFailedToShowFullScreenContent: $error');
        ad.dispose();
        _createRewardedAd();
      },
    );

    _rewardedAd!.show(onUserEarnedReward: (RewardedAd ad, RewardItem reward) {
      print('$ad with reward $RewardItem(${reward.amount}, ${reward.type}');
    });
    _rewardedAd = null;
  }

  Future<void> _createAnchoredBanner(BuildContext context) async {
    final AnchoredAdaptiveBannerAdSize? size =
        await AdSize.getAnchoredAdaptiveBannerAdSize(
      Orientation.portrait,
      MediaQuery.of(context).size.width.truncate(),
    );

    if (size == null) {
      print('Unable to get height of anchored banner.');
      return;
    }

    final BannerAd banner = BannerAd(
      size: size,
      request: request,
      adUnitId: Platform.isAndroid
          ? 'ca-app-pub-3940256099942544/6300978111'
          : 'ca-app-pub-3940256099942544/2934735716',
      listener: BannerAdListener(
        onAdLoaded: (Ad ad) {
          print('$BannerAd loaded.');
          setState(() {
            _anchoredBanner = ad as BannerAd?;
          });
        },
        onAdFailedToLoad: (Ad ad, LoadAdError error) {
          print('$BannerAd failedToLoad: $error');
          ad.dispose();
        },
        onAdOpened: (Ad ad) => print('$BannerAd onAdOpened.'),
        onAdClosed: (Ad ad) => print('$BannerAd onAdClosed.'),
      ),
    );
    return banner.load();
  }

  @override
  void dispose() {
    super.dispose();
    _interstitialAd?.dispose();
    _rewardedAd?.dispose();
    _anchoredBanner?.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Builder(builder: (BuildContext context) {
        if (!_loadingAnchoredBanner) {
          _loadingAnchoredBanner = true;
          _createAnchoredBanner(context);
        }
        return Scaffold(
          appBar: AppBar(
            title: const Text('AdMob Plugin example app'),
            actions: <Widget>[
              PopupMenuButton<String>(
                onSelected: (String result) {
                  switch (result) {
                    case 'InterstitialAd':
                      _showInterstitialAd();
                      break;
                    case 'RewardedAd':
                      _showRewardedAd();
                      break;
                    default:
                      throw AssertionError('unexpected button: $result');
                  }
                },
                itemBuilder: (BuildContext context) => <PopupMenuEntry<String>>[
                  PopupMenuItem<String>(
                    value: '$InterstitialAd',
                    child: Text('$InterstitialAd'),
                  ),
                  PopupMenuItem<String>(
                    value: '$RewardedAd',
                    child: Text('$RewardedAd'),
                  ),
                ],
              ),
            ],
          ),
          body: SafeArea(
            child: Stack(
              alignment: AlignmentDirectional.bottomCenter,
              children: <Widget>[
                ReusableInlineExample(),
                if (_anchoredBanner != null)
                  Container(
                    color: Colors.green,
                    width: _anchoredBanner!.size.width.toDouble(),
                    height: _anchoredBanner!.size.height.toDouble(),
                    child: AdWidget(ad: _anchoredBanner!),
                  ),
              ],
            ),
          ),
        );
      }),
    );
  }
}